Smart Defrag

Smart Defrag

Smart Defrag is a free defragmentation program for all versions of the Windows operating system starting with Windows XP.

Appsreview Score:
97/100 Points
Smart Defrag iOS, Android App
User Rating
1 Star2 Stars3 Stars4 Stars5 Stars6 Stars7 Stars8 Stars9 Stars10 Stars
(8.67/10, 3 votes)
Author: IObit
Category: Defragmenters
  • Scheduled regular and boot time defragging
  • Can automatically shut down after a defrag
  • Option to defrag just Windows Metro Apps
  • Option to auto analyze for defrag alerts
  • Boot time defragmenting
  • Optimization and/or prioritization can be scheduled
  • Exclude files and folders from a defrag
  • Integrates with the Windows right-click context menu
  • Can defrag just the free space
  • Doesn’t allow checking a drive for errors
  • Doesn’t support idle defrags
  • Might try to install a toolbar or unrelated program during or after setup
  • Some options seen in the free version are actually only usable in the professional version
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Rerated Score: 97/100
Author: IObit
How to uninstall

Smart Defrag’s installation is uneventful. You can select a different installation folder and uncheck the desktop icon creation option if you want but that is about it.

The program displays all hard drives connected to the PC it is run on right after start.

Each hard drive is displayed with its name, type, and free and total space. The resolution of the window determines how many drives and other options are displayed on the screen at once, and scroll icons indicate that there is more to explore in this regard.

A Trim option is displayed for Solid State Drives, while auto defrags (PRO version only), boot time defrag and disk cleanup options are displayed for platter-based drives.

You may run smart defrag right away, which analyzes all drives first and runs the most appropriate option afterward.

If you want more control over the process, hover the mouse cursor over the icon on the right of the option to display available tasks.

You may want to start with an analysis of platter-based drives connected to the PC which should not take longer than a minute even for large drives.

Smart Defrag reveals the number of fragments and fragmented files that it found during the scan and the overall fragmentation rate on top of that.

The program displays a recommendation, e.g. fast defrag but that option is not actionable there. What you need to do instead is select “smart defrag” instead or move the mouse over the arrow next to it to select the recommended action.

Naturally, you are not limited to selecting the recommended action. You may pick any of the other actions listed here, for instance, to defragment large files only.

The defragmentation of the drive may take a while depending on its fragmentation status and speed. Once you start a defragmentation process, the estimated remaining time is displayed by Smart Defrag.

You will also see action on the map but that is more for show than useful.

A click on details lists all fragmented files, but there is no option, unfortunately, to select individual files here for defragmentation.

Smart Defrag displays an option on the main screen (scroll if you don’t see it) to add files or folders that you want to defrag. If you are running Windows 8 or newer, you will also see an option to “optimize apps” which will either run a defrag or TRIM operation depending on whether the Windows drive is a Solid State Drive or a platter-based hard drive.

Game Optimize

Games can benefit a lot from defragmentation as they consist of a lot of files and are fairly large usually.

The option of Smart Defrag enables you to add games on your hard drive to run defrag operations on them. Please note that you can only add games that are not stored on a Solid State Drive and that you cannot pick a game folder but only an executable or link file.

It is suggested to use the custom folder defrag option instead if you want to defragment a game folder.

Boot Time Defrag

The third and final option provides you with the means to improve system startup by optimizing the following items:

  1. Page File and Hibernation file defragmentation.
  2. MFT defragmentation.
  3. System File defragmentation.

The two additional options displayed here, the defragmentation of Registry files and specified files, is only available in the Pro version.

If you enable the option, defragmentation will occur on system boot. The default interval is set to 7 days but you can change that in the program options.


The settings are quite extensive and provide you with lots of customization options. Use them to schedule defragmentation jobs, to exclude files or folders, replace the default Windows Disk Defragmenter with Smart Defrag, or configure boot time defrag in detail.


Smart Defrag 5 is a powerful disk defragmentation software for the Windows operating system. It detects Solid State Drives and prevents defrag jobs on SSDs which is a good thing.

What’s missing is a better option to defrag individual files or folders after an analysis. While you could switch between analysis mode and custom file defrag modes, it is not very comfortable and something that should be improved in future versions.

Windows Screenshots:


  1. Roland Spano

    These are good stuff. I wish I had found this site a long time ago. IObit is good people-I have their Surfing Protection & Ads Removal help. And it is a good help.

    Pros: The free option has many items I can use. And I will ! ! !

    Cons: I can live with the things the program does not have.

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